Next phase "top 5" is regarding designers for not designs - for example if:
designer A is ranked #1
designer B is ranked #2
designer C is ranked #3
designer D is ranked
#4designer D is ranked
#5designer E is ranked
#6you can ask for revisions designers on 1, 2, 3, 4, 5 & 6 spot
as regarding second question, yes you can swap designers at any time, so it's very flexible system, even in judging mode you can ask any designer for revision ... all you need to do is to place him/her on first spot.
...I will submit my revisions in a few minutes.
Kindly regards
Sebastian